5. Jose Aldo's KO over Chad Mendes at UFC 142 RIO

Jose Aldo is quickly becoming one of the most well-rounded fighters in the UFC.

His dominance over the featherweight division, albeit a shallow weight class, has launched him into MMA stardom.

The fact of the matter is that Aldo has performed to a specific championship tee throughout his three-fight UFC career, resulting in his name often being thrown into pound-for-pound discussions.

Key title victories over Mark Hominick and Kenny Florian surely bolster his resume, but his most recent championship defense against wrestler Chad Mendes at UFC 142 commands the most recognition.

This is not only because the bout took place in Aldo's native Brazil—resulting in him celebrating his victory by running into the crowd—but more importantly due to one devastating knee that rendered Mendes unconscious with one second left in the first round.

The game plan was perfect, the setting was surreal and the finish was more than memorable.

4. Junior dos Santos' KO over Cain Velasquez at UFC on Fox

Not only was Junior dos Santos' victory over Cain Velasquez at UFC on FOX 1 historic based on its national implications for the sport, but it marked the arrival of boxing to MMA's largest outpost.

Usually compared and contrasted, mixed martial arts is rarely subjected to one specific ability, but Dos Santos has proven that tendency completely wrong, utilizing elite boxing skills to finish some of the best heavyweights in the world.

His first-round KO of Velasquez is by far his most memorable of the sort, winning the most coveted title in the UFC in front of millions of viewers.

That KO, more specifically the single strike that pounded into Velasquez's temple, could be considered the punch heard 'round the world.

It was short, but it marked the arrival of the UFC onto the grand stage that is mainstream America.

2. Jon Jones' TKO over Mauricio Shogun Rua at UFC 128

The success he has endured at such a young age doesn't seem to make sense.

Jones' ability inside the cage doesn't seem mortal; it seems robotic.

His arms move in ways other fighters dream, and his lengthy frame seems unfair when stacked up against other light heavyweights.

Jones has been able to finish three out of his four title fights early, with Rashad Evans being the only No. 1 contender to last all five rounds.

But despite submission victories over Lyoto Machida and Rampage Jackson, two guys known for not tapping, Jones' most prominent victory inside the cage was the one that crowned him the youngest champion in UFC history.

That bout, opposite Mauricio Shogun Rua at UFC 128, was more or less the 24-year-old's coming out party.

Jones had a field day, demonstrating spinning elbows, devastating knees and a primal ability to finish a fight in just 13 minutes.

It was such a worthy victory that Jones was automatically considered a top-five fighter in the world.